When I left for training over the summer, I left my tank full of gas and didn't get back for 2 months. Dumb I know, but when I got back and started her up she had a new weird whining noise from the engine and is having issues idling and sometimes dies when the engine warms up. I put some heet into the older fuel about a week ago and I'm still having problems. When I stop I have to keep an eye on my rpm to make sure it doesn't die when it's idling. Also when I got back, the battery was dead and i had to jump start her. Could really use the help!